I just upgraded to 10.10- Yosemite. I have an external 4TB hard drive. These are the problems I see with Disk Utility:
- No more than two partitions are allowed.
- Changing the partition size I can only use the slider, so I can't enter a number for the size of the selected partition.
- Changing the name of the parent partition is not possible.
I tried to repair the drive, that didn't change anything. I can try to reformat, or even format the drive on Linux to something else and then see what DU says about that. Any ideas what is the problem here or is this a case of a bad release by Apple?